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Smoke inhalation with carbon monoxide exposure — DipIMC MCQ

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ModerateEnvironmental MedicineSmoke inhalation with carbon monoxide exposureDipIMC

A 36-year-old man is found after a house fire with confusion and soot around his mouth. Several cohabitants have headache and nausea. What is the most appropriate drug/dose?

Educational content. Not a substitute for clinical judgement or local policy.

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Correct answer: E — High-flow oxygen immediately for suspected carbon monoxide and smoke inhalation

Smoke inhalation may involve carbon monoxide poisoning, cyanide toxicity and airway injury; high-flow oxygen is an immediate treatment for suspected CO exposure. Pulse oximetry can be misleading. Salbutamol may help bronchospasm but does not treat CO poisoning. The pearl is that multiple symptomatic occupants strongly suggest an environmental toxin.

Reference: JRCALC Guidelines 2025; UKHSA Carbon Monoxide guidance